Roy Hashimoto created HTTPCORE-606:
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Summary: HTTP2 framing layer error with HttpCore 5.0 server
Key: HTTPCORE-606
URL: https://issues.apache.org/jira/browse/HTTPCORE-606
Project: HttpComponents HttpCore
Issue Type: Bug
Components: HttpCore
Affects Versions: 5.0-beta9
Reporter: Roy Hashimoto
Attachments: ConscryptTest.java
The attached file implements a simple H2/TLS server that returns a roughly 64
KB response. Things work fine when HTTP1 is used but with HTTP2 a framing layer
error is reported.
Using curl:
{{$ curl -k https://localhost:8080/}}
{{curl: (16) Error in the HTTP2 framing layer}}
Using Chrome:
{{GET https://localhost:8080/ net::ERR_HTTP2_FRAME_SIZE_ERROR 200}}
I'm using Conscrypt (org.conscrypt:conscrypt-openjdk-uber:2.2.1) because I
currently have only Java 8 environments so that's how I enable H2. I don't know
if the bug is related to the JSSE implementation or not. I did try to disable
TLS on the server and connect with {{curl --http2}} but that didn't work - curl
offered to upgrade but the server returned HTTP1 and the error doesn't happen
with HTTP1.
The response is big enough that writing the response body data to the
DataStreamChannel does not consume it all in one call. I believe this might be
a factor because if I instead dribble the data out with small writes over time
like this then no error occurs:
{{private int counter = 0;}}
{{@Override}}
{{public void produce(DataStreamChannel channel) throws IOException {}}
{{ if (counter < 4096) {}}
{{ ByteBuffer buffer = ByteBuffer.wrap(String.format("%4d:0123456789\n",
counter).getBytes());}}
{{ counter++;}}
{{ channel.write(buffer);}}
{{ new Thread(() -> {}}
{{ try {}}
{{ Thread.sleep(50);}}
{{ } catch (InterruptedException ignored) {}}
{{ }}}
{{ channel.requestOutput();}}
{{ }).start();}}
{{ } else {}}
{{ channel.endStream();}}
{{ }}}
{{}}}
To run the test program you will need to modify the code at the beginning of
{{main}} to load your own X509 KeyStore. Connect to the server with an
H2-capable client on port 8080.
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